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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::regex_token_iterator&lt;BidirIt,CharT,Traits&gt;::</span>regex_token_iterator</h1>
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../regex_match.html" title="cpp/regex/regex match"><span class="t-lines"><span>regex_match</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../regex_token_iterator.html" title="cpp/regex/regex token iterator"><span class="t-lines"><span>regex_token_iterator</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../regex_error.html" title="cpp/regex/regex error"><span class="t-lines"><span>regex_error</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../syntax_option_type.html" title="cpp/regex/syntax option type"><span class="t-lines"><span>syntax_option_type</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../ecmascript.html" title="cpp/regex/ecmascript"><span class="t-lines"><span>Modified ECMAScript-262</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../regex_token_iterator.html" title="cpp/regex/regex token iterator"><tt>std::regex_token_iterator</tt></a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h1"><td colspan="5">成员函数</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><strong class="selflink"><span class="t-lines"><span>regex_token_iterator::regex_token_iterator</span></span></strong></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator%3D.html" title="cpp/regex/regex token iterator/operator="><span class="t-lines"><span>regex_token_iterator::operator=</span></span></a></div></div></td></tr>
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator_cmp.html" title="cpp/regex/regex token iterator/operator cmp"><span class="t-lines"><span>regex_token_iterator::operator==</span><span>regex_token_iterator::operator!=</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">观察器</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator%252A.html" title="cpp/regex/regex token iterator/operator*"><span class="t-lines"><span>regex_token_iterator::operator*</span><span>regex_token_iterator::operator-&gt;</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">修改器</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator_arith.html" title="cpp/regex/regex token iterator/operator arith"><span class="t-lines"><span>regex_token_iterator::operator++</span><span>regex_token_iterator::operator++(int)</span></span></a></div></div></td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">regex_token_iterator<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (1) </td>
<td> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">regex_token_iterator<span class="br0">(</span> BidirectionalIterator a, BidirectionalIterator b,<br>
<p>                      <span class="kw4">const</span> regex_type<span class="sy3">&amp;</span> re,<br>
                      <span class="kw4">int</span> submatch <span class="sy1">=</span> <span class="nu0">0</span>,<br>
                      <a href="../match_flag_type.html"><span class="kw2038">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_flag_type</span></span></a> m <span class="sy1">=</span><br>
</p>
                          <a href="../match_flag_type.html"><span class="kw2039">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_default</span></span></a> <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (2) </td>
<td> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">regex_token_iterator<span class="br0">(</span> BidirectionalIterator a, BidirectionalIterator b,<br>
<p>                      <span class="kw4">const</span> regex_type<span class="sy3">&amp;</span> re,<br>
                      <span class="kw4">const</span> <a href="../../container/vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span><span class="sy3">&amp;</span> submatches,<br>
                      <a href="../match_flag_type.html"><span class="kw2038">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_flag_type</span></span></a> m <span class="sy1">=</span><br>
</p>
                          <a href="../match_flag_type.html"><span class="kw2039">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_default</span></span></a> <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (3) </td>
<td> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">regex_token_iterator<span class="br0">(</span> BidirectionalIterator a, BidirectionalIterator b,<br>
<p>                      <span class="kw4">const</span> regex_type<span class="sy3">&amp;</span> re,<br>
                      <a href="../../utility/initializer_list.html"><span class="kw960">std::<span class="me2">initializer_list</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> submatches,<br>
                      <a href="../match_flag_type.html"><span class="kw2038">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_flag_type</span></span></a> m <span class="sy1">=</span><br>
</p>
                          <a href="../match_flag_type.html"><span class="kw2039">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_default</span></span></a> <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (4) </td>
<td> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><a href="../../types/size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> N<span class="sy1">&gt;</span><br>
<p>regex_token_iterator<span class="br0">(</span> BidirectionalIterator a, BidirectionalIterator b,<br>
                      <span class="kw4">const</span> regex_type<span class="sy3">&amp;</span> re,<br>
                      <span class="kw4">const</span> <span class="kw4">int</span> <span class="br0">(</span><span class="sy3">&amp;</span>submatches<span class="br0">)</span><span class="br0">[</span>N<span class="br0">]</span>,<br>
                      <a href="../match_flag_type.html"><span class="kw2038">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_flag_type</span></span></a> m <span class="sy1">=</span><br>
</p>
                          <a href="../match_flag_type.html"><span class="kw2039">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_default</span></span></a> <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (5) </td>
<td> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">regex_token_iterator<span class="br0">(</span> <span class="kw4">const</span> regex_token_iterator<span class="sy3">&amp;</span> other <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (6) </td>
<td> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp">regex_token_iterator<span class="br0">(</span> BidirectionalIterator a, BidirectionalIterator b,<br>
<p>                      <span class="kw4">const</span> regex_type<span class="sy3">&amp;&amp;</span> re,<br>
                      <span class="kw4">int</span> submatch <span class="sy1">=</span> <span class="nu0">0</span>,<br>
                      <a href="../match_flag_type.html"><span class="kw2038">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_flag_type</span></span></a> m <span class="sy1">=</span><br>
</p>
                          <a href="../match_flag_type.html"><span class="kw2039">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_default</span></span></a> <span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></div></td>
<td> (7) </td>
<td> <span class="t-mark-rev t-since-cxx14">(C++14 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp">regex_token_iterator<span class="br0">(</span> BidirectionalIterator a, BidirectionalIterator b,<br>
<p>                      <span class="kw4">const</span> regex_type<span class="sy3">&amp;&amp;</span> re,<br>
                      <span class="kw4">const</span> <a href="../../container/vector.html"><span class="kw1269">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span><span class="sy3">&amp;</span> submatches,<br>
                      <a href="../match_flag_type.html"><span class="kw2038">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_flag_type</span></span></a> m <span class="sy1">=</span><br>
</p>
                          <a href="../match_flag_type.html"><span class="kw2039">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_default</span></span></a> <span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></div></td>
<td> (8) </td>
<td> <span class="t-mark-rev t-since-cxx14">(C++14 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp">regex_token_iterator<span class="br0">(</span> BidirectionalIterator a, BidirectionalIterator b,<br>
<p>                      <span class="kw4">const</span> regex_type<span class="sy3">&amp;&amp;</span> re,<br>
                      <a href="../../utility/initializer_list.html"><span class="kw960">std::<span class="me2">initializer_list</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> submatches,<br>
                      <a href="../match_flag_type.html"><span class="kw2038">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_flag_type</span></span></a> m <span class="sy1">=</span><br>
</p>
                          <a href="../match_flag_type.html"><span class="kw2039">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_default</span></span></a> <span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></div></td>
<td> (9) </td>
<td> <span class="t-mark-rev t-since-cxx14">(C++14 起)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><a href="../../types/size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> N<span class="sy1">&gt;</span><br>
<p>regex_token_iterator<span class="br0">(</span> BidirectionalIterator a, BidirectionalIterator b,<br>
                      <span class="kw4">const</span> regex_type<span class="sy3">&amp;&amp;</span> re,<br>
                      <span class="kw4">const</span> <span class="kw4">int</span> <span class="br0">(</span><span class="sy3">&amp;</span>submatches<span class="br0">)</span><span class="br0">[</span>N<span class="br0">]</span>,<br>
                      <a href="../match_flag_type.html"><span class="kw2038">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_flag_type</span></span></a> m <span class="sy1">=</span><br>
</p>
                          <a href="../match_flag_type.html"><span class="kw2039">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">match_default</span></span></a> <span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></div></td>
<td> (10) </td>
<td> <span class="t-mark-rev t-since-cxx14">(C++14 起)</span> </td>
</tr>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>构造新的 <code>regex_token_iterator</code> ：
</p>
<div class="t-li1"><span class="t-li">1)</span> 默认构造函数。构造序列尾迭代器。</div>
<div class="t-li1"><span class="t-li">2-5)</span> 首先，复制出 <code>submatches</code> 或 <code>submatch</code> 参数的请求的子匹配列表，到存储于迭代器的成员列表中，再通过传递 <code>a</code> 、 <code>b</code> 、 <code>re</code> 和 <code>m</code> 到其四参数构造函数（该构造函数进行到 <span class="t-lc"><a href="../regex_search.html" title="cpp/regex/regex search">std::regex_search</a></span> 的初始调用）构造成员 <span class="t-lc"><a href="../regex_iterator.html" title="cpp/regex/regex iterator">std::regex_iterator</a></span> ，然后设置子匹配的内部计数器为零。
<ul><li> 若构造后，成员 <code>regex_iterator</code> 不是序列尾迭代器，则设置成员指针直指向当前 <span class="t-lc"><a href="../sub_match.html" title="cpp/regex/sub match">std::sub_match</a></span> 的地址。
</li><li> 否则（若成员 <code>regex_iterator</code> 是序列尾迭代器），但值 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">-</span><span class="nu0">1</span></span></span> 是 <code>submatches</code>/<code>submatch</code> 中的值之一，则将 <code>*this</code> 转变为指向范围 <code>[a,b)</code> 的<i>后缀迭代器</i>（整个字符串是非匹配的后缀）
</li><li> 否则，（若 -1 不在子匹配列表中），转变 <code>*this</code> 为序列尾迭代器。</li></ul></div>

<p>若 <code>submatches</code> 中任何值小于 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">-</span><span class="nu0">1</span></span></span> 则行为未定义。
</p>
<div class="t-li1"><span class="t-li">6)</span> 复制构造函数：进行逐元素赋值（包含复制成员 <code>regex_iterator</code> 和成员指向 <span class="t-lc">sub_match</span> 指针）。</div>
<div class="t-li1"><span class="t-li">7-10)</span> 重载 2-5 禁止以临时 regex 调用，因为否则返回的迭代器会被立即非法化。</div>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
<table class="t-par-begin">


<tr class="t-par">
<td>  a
</td>
<td> -
</td>
<td> 指向目标字符序列起始的<a href="../../named_req/BidirectionalIterator.html" title="cpp/named req/BidirectionalIterator"><i>遗留双向迭代器</i> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(LegacyBidirectionalIterator)</span> </a>
</td></tr>
<tr class="t-par">
<td>  b
</td>
<td> -
</td>
<td> 指向目标字符序列结尾的<a href="../../named_req/BidirectionalIterator.html" title="cpp/named req/BidirectionalIterator"><i>遗留双向迭代器</i> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(LegacyBidirectionalIterator)</span> </a>
</td></tr>
<tr class="t-par">
<td>  re
</td>
<td> -
</td>
<td> 用于在目标字符序列中搜索的正则表达式
</td></tr>
<tr class="t-par">
<td>  submatch
</td>
<td> -
</td>
<td> 应当返回的子匹配下标。 "0" 表示完整匹配，而 "-1" 表示未匹配的部分（例如匹配间的填塞）。
</td></tr>
<tr class="t-par">
<td>  submatches
</td>
<td> -
</td>
<td> 应当在每个匹配内迭代的子匹配下标的序列，对于非匹配碎片可能包含特殊值 -1
</td></tr>
<tr class="t-par">
<td>  m
</td>
<td> -
</td>
<td> 掌管 <code>re</code> 行为的标志
</td></tr></table>
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style=""><tr><td class="mbox-empty-cell"></td><td class="mbox-text" style="">本节未完成<br>原因：暂无示例 </td></tr></table>

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